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Low-loss paper-substrate triple-band-frequency reconfigurable microstrip antenna for sub-7 GHz applications
Published 2023“…In this paper, a low-cost resin-coated commercial-photo-paper substrate is used to design a printed reconfigurable multiband antenna. The two PIN diodes are used mainly to redistribute the surface current that provides reconfigurable properties to the proposed antenna. …”
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Innovative UWB phase shifters using groove gap-waveguide technology inspired by metasurfaces for beamforming networks operating at 100 GHz
Published 2025“…The metasurface features a "bed-of-nails" structure, where metal pins are connected to a bottom layer and spaced <λ/4 from a top plate. …”
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Metamaterial based ultra-wideband antennas for portable wireless applications
Published 2017“…Various approaches have been reported to reduce the physical size of RF antennas including using high permittivity substrates, shorting pins, reactive components, and more recently, metamaterials (MTM) based on composite right-/left-handed transmission-lines (CRLH-TLs). …”
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Measurement and modelling of operational amplifier power supply rejection
Published 1995“…Measured results for 741 and pin-compatible operational amplifiers are tabulated. …”
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Photonic controlled metasurface for intelligent antenna beam steering applications including 6G mobile communication systems
Published 2023“…This paper presents a novel metasurface antenna whose radiation characteristics can be remotely controlled by optical means using PIN photodiodes. The proposed reconfigurable antenna is implemented using a single radiating element to minimize the size and complexity. …”
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Advances image-based automated security system
Published 2024“…This system deals with the protection of possessions, minimizing break-ins, and avoiding any dangerous situations. The additional salient feature is that it also deals with the COVID-19 alerts, which are generated from the temperature sensor. …”
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Social Work in FSU countries: mapping the progress of' 'the professional project'
Published 2018“…A chronology of legislation relevant to the establishment of social work is included which highlights the variation ins in the pace of developments as do the establishment of professional education (throughout the region) and professional associations (in most countries). …”
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A modular approach to next generation Qucs
Published 2021“…The current focus of the initiative is to provide a set of features implemented by the latest Qucs release as user loadable plug-ins, plus a series of new features ported from Qucs forks, predominantly Qucs-S and CanEDA. …”
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3rd order coupled-resonator bandpass filter assisted by Groove Gap-Waveguide technology for 26-GHz radio link diplexer
Published 2025“…Its unit-cells consist of a rectangular metal-pin which is connected to a bottom metal plate and its other side is electromagnetically coupled to a top plate with an air-gap of approximately λ/4 that creates a bandgap, preventing unwanted electromagnetic-wave propagation. …”
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Electronically reconfigurable and conformal triband antenna for wireless communications systems and portable devices
Published 2022“…This is achieved by connecting two open-ended stubs to a modified triangular patch radiator using PIN diodes. The antenna’s performance was optimized using a 3D electromagnetic solver and its performance was verified through measurements. …”
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A Novel MIMO antenna integrated with a solar panel and employing AI-equalization for 5G wireless communication networks
Published 2024“…We demonstrate that the directivity of this antenna array can be precisely electronically reconfigured using PIN diode switches. Additionally, we show the feasibility of integrating solar panels with the proposed MIMO antenna array. …”
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Promoting the Individual Learning Styles of Masters Students Studying Marketing-related Modules through the Use of YouTube Video-Clips
Published 2007“…It is often hard for academics to find resource material, particularly visual material for new and emerging disciplines; particularly when Universities are developing courses faster than teaching materials are made generally available. …”
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A comprehensive survey on ‘‘various decoupling mechanisms with focus on metamaterial and metasurface principles applicable to SAR and MIMO antenna systems’’
Published 2020“…Such techniques include the use of defected ground structure (DGS), parasitic or slot element, dielectric resonator antenna (DRA), complementary split-ring resonators (CSRR), decoupling networks, P.I.N or varactor diodes, electromagnetic bandgap (EBG) structures, etc. …”
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Rural transformation and productivity in China
Published 2008“…This paper carries out for the first time an econometric investigation of the contribution of rural transformation to total factor productivity in China. We find that the efficiency gains resulting from rural transformation make a significant and nontrivial contribution to factor productivity in China. …”
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The equilibrium real effective exchange rate of China : a NATREX approach
Published 2008“…However the misalignment rates are much lower than those reported by previous studies. We also find weak evidence of overvaluation for most of the pre-reform period. …”
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Wideband and multiband antennas for multi-configuration mode applications
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Madame Reilly, fortune teller
Published 1985“…Behind her, a handwritten advertisement reading 'Come and find happiness and joy speaking to Madame Reilly'. …”
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A taxonomic re-appraisal of the Passeriformes (Aves) based on the morphology of the plantar surface of the foot
Published 1988“…Compatibility analysis (by a LeQuesne test computer program) was used to find cliques of compatible characters for families, and other groups of Passeriformes. …”
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Thesis